from flask import make_response, current_app
from flask_restful.utils import PY3
from json import dumps


def output_json(data, code, headers=None):
    """Makes a Flask response with a JSON encoded body"""

    # 此处为自己添加***************
    if 'message' not in data:
        data = {
            'message': 'OK',
            'data': data
        }
        # **************************

        settings = current_app.config.get('RESTFUL_JSON', {})
        # If we're in debug mode, and the indent is not set, we set it to a
        # reasonable value here. Note that this won't override any existing value
        # that was set. We also set the "sort_keys" value.
        if current_app.debug:
            settings.setdefault('indent', 4)
            settings.setdefault('sort_keys', not PY3)

        # always end the json dumps with a new line
        # see https://github.com/mitsuhiko/flask/pull/1262
        dumped = dumps(data, **settings) + "\n"
        resp = make_response(dumped, code)
        resp.headers.extend(headers or {})

        return resp
